It happened to me that all the times that I logged out Yahoo! Mail beta, Firefox would crash completely.
Doing some tests I found that the culprit was Firebug extension for Firefox; I simply disabled Firebug for yahoo.com and I haven’t had any more problems since then.

Versions:
Firefox 2.0.0.12
Firebug 1.05

So far I haven’t figured out where is the user’s caret when entering an HTML page with multiple fields.

With the following code (placed right before the closing HTML tag), the page will load and focus the first text or text area field on the page. Read the rest of this entry »

In Plesk, you can disable on a per-domain basis PHP’s safe_mode. Before doing this though, be advised that disabling safe_mode could lead to security risks for all of your domains on the server. Read the rest of this entry »

I do a lot of development with PHP, and often I need to work directly with PostgreSQL and MySQL’s client consoles, for schema work or data manipulation.

On both database clients, you can see a result set on expanded or vertical display (the output formatted in rows instead of the usual columns) with the following methods: Read the rest of this entry »

If you need to password protect a directory that is hosted under a subdomain with Plesk, you’ll find that it is not quite as easy as protecting a directory that is avaliable directly from the main domain. Read the rest of this entry »

On our Internet connected servers, besides using iptables to limit incoming connections, we are using TCP wrappers (hosts.allow and hosts.deny) to reject connections originating on untrusted networks.

Probably you’re already using iptables to block incoming traffic on port 22 (ssh), which is fine but what we want to do is increase security by using a more persistent method for blocking traffic. Don’t get me wrong, iptables’ rules can (and should) be made persistent but sometimes while trying new rules some key ports can be left open. Read the rest of this entry »

Running a check on Apache’s default logs (/var/log/httpd/access_log), I found attempts to exploit the server thru a “backdoor” in Horde.

I haven’t fully checked what could be done with this exploit but certainly leaving the affected script unprotected is an open invitation for trouble. Read the rest of this entry »

The ccTLD operator for BO (Bolivia) domains is having some major technical difficulties, keeping all of its domains unavailable since 7:00 AM (2006-07-19 07:00 -400). We presume that the problem was originated earlier, with domains stopping to work as early as 1:20 AM. Read the rest of this entry »

For the last days, I’ve been receiving the following message from Windows Live Messenger: “Due to a connection problem, changes you make might not be applied to other computers you use”.
Read the rest of this entry »

If you’re working with web applications that use complex forms, you probably know that it becomes useful to split a very long forms on several pages (keeping interim posts on sessions variables) and process all the received data on a single transaction. But what happens when a user clicks on the Back button all the way to the first page or just wants to close the browser’s window? Read the rest of this entry »